The Siemens 5SL6608-8CC is a D-curve miniature circuit breaker rated 8 A at 400 V with a 6 kA interrupting capacity, configured 3+N-pole. This is a current-production part (lifecycle status: active) so factory supply is normal; no obsolescence concern for new designs or BOM maintenance.
Panel integration & compliance
Mounts on standard DIN rail in the distribution board. The 3+N-pole format occupies four module widths; verify the busbar comb arrangement if paralleling with adjacent single-pole breakers — the N-pole is switched but not protected, so the neutral busbar path must match the breaker's neutral terminal position. RoHS compliant since 01-06-13. REACH Article 33 duty-to-inform applies — the supplier must provide candidate-list substance data on request. Product class B means return is restricted; coordinate with your Siemens partner for any RMA or warranty claim.